Self-locking hinge.



C. DIENER.

SELF LOCKING HINGE.

APPLICATION FILED 111,111.25. |915.

1., 141,782. Patented June 1, 1915.

A TTR/VEYS CHARLES DIENER, OF NEW YORK, N. Y.

SEI'E'JZOCKINGV HIN GE.

T0 all whom it may concern Be it lmown that I, CHARLns DIENER, a citizen of the United States, and a resident of the city of New York, borough of Brooklyn, in the county of Kings and State of New York, have invented a-certain new and Improved Self-Locking Hinge, of which the following is a specification.

This invention relates to improvements in hinges and more particularly an improved self-locking hinge designed to hold a door or closure in a predetermined or desired open position or closed.

Another object of the invention is to provide an improved self-locking hinge in which spring means are provided to hold the leaves of the hinge in different relative positions immovable with respect to each other,

ythe sleeves or knuckles of the hinge plates or leaves being designed to coperate with each other or with spring-actuated means in order to hold the leaves of the hinge in certain relative angular positions or closed as desired.

1With the above and other objects in view, the invention resides in the peculiar combination and arrangement of parts to be hereinafter more fully described, illustrated, and claimed, it being an object to provide a device which is simple in construction, durable, and efficient in operation, and not likely to get out of order.

Reference is to be had to the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all of the views, and in which Figure 1 is a front view of my improved hinge; Fig. 2 is a view at right angles thereto; Fig. 3 is a sectional elevation showing the hinge in position when a door carried thereby is swung at right angles to its frame; and Fig. 4 is a section taken on the line H of Fig. 2.

In the drawings forming a part of this application I have shown my hinge adapted for use with a swinging member, door, or closure, 5 within a frame 6 and preferably for application to smaller doors or closures such as used with wardrobes and cupboards.

The hinge includes a leaf 7 to which is pivoted a leaf 8, the same having co-acting knuckles or sleeves of any suitable number. The hinge leaf 7 which is attached to the door is provided with a knuckle or sleeve 9 which is straddled by upper and lower Specification of Letters Patent.

Patented June 1, 1915.

Application filed March 25, 1915. Serial No. 16,939.

knuckles 10 of the hinge leaf or plate 8 so as to provide a space l1 between the lmuckle 9 and the upper knuckle 10.

The pintle 12 is cylindrical throughout its vlength and carries a locking dog or block 13 sildably thereon and a coil spring 14 tending to force said dog upwardly against the upper knuckle 10, said spring and dog being arranged within the space 11, as is clearly shown.

The upper knuckle 10 is proveded with a lower camming edge 15 engaged by the upper camming edge 16 of the dog 13, and said dog is split or bifurcated as shown at 17 and between the arms of which is the leaf 7, whereby said dog is held against rotation independently of the leaf 7 but may slide thereon.

The spring normally forces the dog upwardly, and in the tendency of the dog to ride into the depression of the cam surface 15 the door will be moved into a closed position, said cam surface tapering upwardly toward the frame and the stationary leaf 7. Normally, the locking dog is held in its uppermost position but, when the door is opened, the camming edges will force the locking dog downwardly against the action lof the spring 14; when the door has been .opened sufficiently far to move the dog into its lowermost position, the friction of the horizontal edge surfaces of the knuckle 10 and dog will be sufficient to hold the door in any desired position.

From the foregoing description in connection with the accompanying drawings, it will be seen that I have provided a very simple and positively acting locking hinge, and that the principle involved therein may be equally well employed with double acting or other types of hinges without departing from the spirit of the invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

A self-locking hinge, comprising a pair of leaves provided with interengaging lmuckles, one knuckle of one leaf being spaced from the knuckle of the other leaf and provided with a camming edge, a pintle passed through said knuckles, a dog slidable on said pintle having projecting arms extending over opposite surfaces of one of said leaves and provided with a camming edge normally 3;

engaged with said first named cainmmg edge, and a spring on said pintle bearing on the adjacent surfaces of said dog and the name to this speoication in the presence of knuckle of said second nenflelv leaf and tWo subscribing Witnesses.

normally insuring engagement of said oem edges, sani dog being moved out of normal YCHARLES DIENER.

5 position in the opening movement of one Witnesses:

leaf With respect to the other leaf. J C. LARSEN,

In testimony whereof I have signed my Geil-I. EMSLIE.

Copies of this patent may be obtained for ve cents each, byV addressing the Commissioner of Patents,

Washington, D. C. 

